新能源汽车动力总成的可靠性改进方向探索

Advantages
• Zero-emissions • Charging gas quickly • Having longer driving distance
than PEV
Disadvantages
• Technology cost is too high • Zero-emissions hydrogen
Excellent
Advantages
High energy density, good low temperature performance
Disadvantages
Poor performance at high temperature, poor safety, high production technology requirements
habbit • Improve driving performance • Reduce noise of mechanical
Disadvantages • Technology cost is too high • Property limited by driving
conditon
6/11
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Biblioteka Baidu
EV 1mio
70%
3mio
80%
FCEV 1000 EEV
Area Operation
5L/100k m
4L/100k m
5/11
Hybrid Electric Vhicle(HEV)
Advantages • Reduce fuel consumption • The driver need not to change
specific energy, and thus is the most promising.
3/7
LiFePO4
LiMn2O4
LiCoO2
NCM/NCA
4/7
NCA
Voltage Platform
3.7
Energy Density
＞180
Cycle Life
＞2000
Cost
Low
Comprehensive Performance
Very good HEV
good FCEV
normal PEV
HEV and PEV have advantages and potential in ten years
9/11
Pure Electric Vehicle (PEV)
10/11
Group Division
11/11
The Battery
production is a chanllenge • Storage and transportation are
difficult 7/11
Pure Electric Vehicle (PEV)
Advantages • Zero-emissions • High utilization of energy • Low noise • Simple Configuration of vehicle
Presented by：Chen Xinyue 1/7
Outline
PEV's Requirements on Batteries The Comparison Between Different Batteries
Reliability Improvement of Batteries
2/7
What requirements do PEV’s batteries need to meet?
Disadvantages • Driving distance is short • Charging time is long • Battery life is short • Technology cost is too high
8/11
Compare
Type Distance Emission Charging Time Oil Saving Charging Equipment Industrialization Potential Technical Difficulty
新能源汽车动力总成的 可靠性改进方向探索
2020年5月31日星期日
Outline
Background Comparison of Differient EVs
Group Division
2/11
Development of New Energy Vehicles
3/11
Background of Automotive Industry
NCM 3.6
160~180 ＞2000
Low
LiFePO4 3.2
120~130 ＞2000
High
LiMn2O4 3.8
130~150 500~800 The Lowest
LiCoO2 3.7
150~180 ＞1000 Higher
Excellent
Good
Bad
Good
Electrochemic al stability, good cycle performance
Fuel Cell Electric Vehicle(FCEV)
Generally
Fuel cells in vehicles generate electricity to power the motor, generally using oxygen from the air and compressed hydrogen.
High safety, long cycle life
Manganese is rich in resources, low price, good security
High Energy Density
Long-Life
Environmental Protection
High Cost Performance
Compared to other batteries, lithium battery is more environmentally friendly, has high
4/11
10 Years Strategic Target
EEV and NEV Main Objectes Planning
2020 Domestic Oil 2025 Domestic Oil
Type Sales Market Consu- Sales Market Consu-
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